After several years of using Flats I've gone back to Roundwounds. I've tried 'em all...TI Jazz, D'A Chromes,LaBellas...etc, etc. And I love them when I play alone in my basement. But I gig a lot and Flats have never cut through the mix well enough. Last month I finally went back to rounds as an experiment and what a difference. I still like the Flats better when playing alone but in the band mix both my basses cut through MUCH better. Alas....I will miss Flats.